Permutation-lock.



J. H. MATT-ICE.

PERMUTATION LOCK.

APPLICATION FILED 1AN.24.'19|6.

Patented Feb. 27, 1917.

l I 4 2 SHEETS-SHEET 2.` I LEZ@ f7 1;, TED s'rATEs PATENT oEETcE.

JOHN' HARRISON MATTICE, 0F CLYDE, KANSAS.

PERMUTATIoN-LOCK.

Specification of Letters Patent.

Patented rieuse, 1917'.

Application filed January 24, 1916. Serial No. 73,941.

locks and more particularly to those of the` permutation or combinationtype, the object ,of the invention being'to provide an extremely simpleand inexpensive arrangement of parts which will be applicable to a widerange of uses and which will be highly eflicient and durable regardlessof the exact use to which it is put.

With this general object in View, the invention resides in certain novelfeatures of construction and in unique combinations of parts to behereinafter fully described andclaimed, the descriptive matter beingsupplemented by the accompanying drawings which constitute a part ofthis application and in which:

Figure l is a central vertical section through my improved lockmechanism showing the same in operative position;

Fig. 2 is a vertical transverse section taken on the plane indicated bythe line 2 2 of Fig. 1;

Fig. 3 is a view similar to Fig. 1 showing the parts of the device inreleased position;

Fig. 4 is a vertical transverse section taken on the plane indicated bythe line 4 4 of Fig. 3;

Fig. 5 is a third vertical transverse section taken on the plane of theline 5 5 of Fig. 1;

Figs. 6, 7, 8 and 9 are perspective details of certain parts of thedevice to be hereinafter fully described.

In these drawings, a member lis shown whichmay be the usual spindle of adoor lock, the shank of a key, the stem for operating an electricswitch, or any otherA device adapted to .be turned onlyv by ,authorizedpersons. The member 1 is provlded with a head 2 having a flat outer end3 disposed at right angles to the axis of said head and member, theformer having therein an axial socket 4 and one or more notches 5 shownin the present embodiment of the invention as opening through the end 3.Although in most cases the head 2 will be preferably made an integralpart of the member 1, it will be readily understood that the head inquestion might well be formed as a separate part and secured to saidmem- L ber. For the purpose of turning the head 2 1n the necessarymanner, the arrangement of parts now to be lspecifically described byreference to the drawings, is employed.

The numeral 6 designates a disk or the like toxbe secured in anypreferred manner to the,v casing of the mechanism to be operated by themember 1, or to any other approprlate fixed member, it being onlynecessary that said disk be held against movement. The front side of thedisk 6 is provided with a sleeve 7 preferably cast integrally therewith,the axis of said sleeve being alined with the axis of the head 2 asyclearly shown. VMounted for rotation in the sleeve 7 and projectingforwardly therefrom an appropriate distance, is a tubular shaft 8 whoserear end is shown, as yprovided with a head 9 having a flatrrear enddisposed either in contact with or in close proximity to the vface 3 ofthe head 1, said end of the head' 9 having formed Vtherein one or moreVradial notches .'10, two of these notches being here shown.

Mounted yfor rotation and axial shifting in theotubular shaft 8,v is aspindlel11 having an appropriate knob 12 on its outer end, while itsinner end is equipped with laterally extending projections 13 preferablyin the form of pins. These projections l are adaptedto -be received inthe notches jdesignatedat 5, and said shaft is then lockedvagainst`rotationj. lAs one simple lmeans of locking the shaft 8vagainst rotation, the drawings illustrate the construction now to bedescribed.

The sleeve 7 is formed with an aperture n in the periphery of thetubular shaft 8', said cavity having two of its sides designed to formcam surfaces 16 adapted` for a purpose to be set forth. Carried withinthe aperture 1-'l and extending beyond the periphery of: ,the sleevev 7when the deviceis not in operative position, is a weighted tumbler 17here shown in the formof a kmetal cylinder, said tumbler being adaptedto drop into the cavity 1.5 when the shaftl 8 is turned to the.properextent, thereby locking said shaft against further movement,provided said tumbler be held against shifting outwardly.

For the last named purpose, a plurality of tumbler retaining rings areshown in the drawings, two of these 'rings being desigi nated at18,.while a third is indicated by the numeral 19. All of these ringsrotatably surround the fixed sleeve 7 and are frictionally held thereon.`Each one ofthe threerings is formed with an internal notch 20, all ofsaid notches being adapted for alinement and for registration with theaperture 1a as shown in Figs.' 3 and l, whereupon rotation of the shaftS willl befperinitted, since one or the other of the cam surfaces 16will move the tumbler 17 from the cavity4 The Vring 19 isi-of greaterdiameter thanl the others, said ring beingprovided with a laterallyextending .annular Hange 21 which surrounds said other rings, the freeedge of said flange abuttinga circular plate` which formswith saidflange a protec@ tive housing for the tumbler 17 and the smaller rings`cooperating therewith. The plate 22 is formed with a central openingthroughwhich the front end of the tubular shaft S' passes, said endbeing provided with a collar23 permanently secured` t'hereon in anysuitable manner, Aand bearing against the plate 24 to prevent removal ofthe latterand of parts in rear thereof.

For the purpose of operating the rings 1S by actuation of the plate 22,a rigid pin `26 extends. from -the ring 19 througrhlany desired one of aseries of openings'26 in said plate, said pin cooperating with externalshoulders 27 on the aforesaid rings 18. The projecting front end of thepin 19valso passes through an opening 26 in aplate 24 mounted on theshaft 8 and capable of being turned thereon to adjust a pointer 24; withwhich it'isprovided, before said pin is inserted into said opening 26".the plate 22 is rotated until the pointer 211! extends opposite thecorrect graduation, the notch 20 of one ring 18 will be disposed abovethe tumbler 17. Rotation of said plate "apredetermined eXtent in theoppo-r site direction, will now properly position the other ring 18whileagain reversing its direction of movement and turning said plate rto thenecessary amount, will position the notch20. ofthe ring 19 intalinementwith the others.l The knob 12-may then ybe turned and forced inwardly vunt-il the When' pins 13 are received in thenotches.5 ,wherer upon themember 1 may be operated as above set forth..

outwardly and at the same time turned. to again dispose the pins 13 inthe.. notches 10 TWhen the l improved mechanismV is, to,I bel locked, orin other words is -to prevent move.-y inent of the memberihthe knob 12is pulled whereupon further rotation. of. said .knob

will move the shaft 8, therebydisposinglthe aforesaid notches outofalinement with .the

notches and allowing .the tumblerlSto drop into the cavity 15.4 Properactuation [eef of the plate 22 .will now so `dispose the rings' l i 18and 19 as. to prevent removahof said f tumbler from the aforesaid.cavity untila legitimate user again voperates the.. device..

Preferably, though ynot necessarily ...used in conpmction withthenumerousnoVel featuresabove described, is a centrally. apertured cap28, which is passed over the head.V and threaded Vinto an annularflange. or`

ione

the like 29 formed on the rear face ofthe.

disk 6. This detail will lretain the head in question inproper relationtothe remainder..

of the device, but obviously -its exact struc-.

ture might vary in a number o f ways..

From. the foregoing description, taken in.

connection with the accompanying drawings, theconstruction, manner ofoperation, `and advantagesof the yimproved device will be readily`understood withouty requiring a more extended explanation. .Inconclusion,

# will state that although certain specific details have been shown anddescribed for illustrative purposes, numerous changes may be made withinthescope` ofthe invention as claimed without sacrificing the primaryadvantagesthereof. y

I claim :.-4

1. In a permutation lock mechanism, Vthe combination of a fixedv sleeveQ having an aperture leading fromits interior. toits eX- terior, a shaftmounted for vrotation in said sleeve and having in itsperiphery a'cavityl for registrationwith theaforesaid aperture, a tumbler ,carried in saidaperture and adapted forpartial reception in the cavity to lock theshaft against rotation, said tump bler projecting beyond theperipheryofv said sleeve when removed from l.the cavity,

a plurality of rings rotatablyA surrounding iso said fixed sleeve toprevent removal of the tumbler from said cavity, said rings havingexternal shoulders and internal notches, the latter being adapted to beregistered with the aforesaid aperture to allow outward movement of saidtumbler, a housing for thevrings, and an operating member in and carriedby said housing for coperation with the aforesaid shoulders to set therings when said housing is properly turned.

2. In a permutation lock mechanism, the combination of a fixed sleevehaving an aperture leading from its interior to its exterior, a shaftmounted for rotation in said sleeve and having in its periphery a cavityfor registration with the aforesaid aperture, a tumbler carried in saidaperture and adapted for partial reception in the cavity to lock theshaft against rotation,

said tumbler projecting beyond the periphery of said sleeve when removedfrom the cavity, a plurality of rings rotatably surrounding said fixedsleeve to prevent removal of the tumbler from said cavity, said ringshaving internal notches to be registered with the aforesaid aperture toallow outward movement of said tumbler, an annular flange extending fromone of said rings and surrounding the other rings, a plate abutting oneedge of said flange and forming with the latter a housing for thetumbler and the last named rings, and cooperating means carried by thehousing and rings for setting the latter when the housing is properlyturned.

3. In a permutation lock mechanism, the combination of a fixed sleevehaving an aperture leading from its interior to its ex-` terior, a shaftmounted for rotation in said sleeveand having in its periphery a cavityfor registration with the aforesaid aperture, a tumbler carried in saidaperture and adapted for partial reception in the cavity to lock theshaft against rotation, said tumplurality of rings rotatably surroundingsaid fixed sleeve to prevent removal of the tumbler from said cavity,said rings having internal notches to be registered with the aforesaidaperture to allow outward movement of said tumbler, an annular ange eX-tending from one of the endmost of said rings and surrounding the otherrings, a plate abutting the free edge of said flange and forming withthe latter a housing for the tumbler and the last named rings, a rigidpin extending from said endmost ring to the plate, and shoulders on theexterior of the other rings to be engaged by said pin to'properlyposition said rings.

4. In a permutation lock mechanism, the combination of a fixed sleeve, atubular shaft passing rotatably therethrough and having at one end anotch, permutation locking means coperating with said shaft and sleeveto lock the former against rotation, a spindle rotatably and slidablymounted in said tubular shaft and having a laterally extending rigidprojection for reception in said notch tol hold said spindle againstrotation when they shaft 'is locked, and a member to be turned having a.head against which the aforesaid projection bears when disposed in saidnotch, said head also having a notch into which the projection may bemoved when rotation of the shaft is allowed by release of the aforesaidlocking means.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN HARRISON MATTICE.

Witnesses:

ZELLA FRENCH, HARRY CONNERLEY.

Copies of this patent may be obtained for ve cents each, by addressinglc he Commissioner of Patents, washington, D. o.v

